1756-PB75/B Allen Bradley Module 24VDC High Capacity Controllogix Io Modules

Product Specification

​1.Product Overview​

The ​Allen-Bradley 1756-PB75/B ControlLogix® Power Supply​ is a high-capacity, redundant power module engineered for mission-critical automation systems. Designed for Rockwell’s 1756 chassis, it delivers ​75W (6A @ 5.1V DC)​​ with ​N+1 hot-swap redundancy, ensuring zero downtime during failures. Its rugged die-cast aluminum housing features ​IP54 protection​ (–40°C to +70°C) and withstands severe shock/vibration (15g IEC 60068-2-27). Integrated ​dual-input auto-ranging​ (100–240V AC ±10%, 47–63Hz or 125–250V DC) enables global deployment. Key innovations include ​active harmonic filtering​ (<8% THDi), ​predictive failure alerts, and Studio 5000® integration for real-time health monitoring.

2.​Critical Technical Specifications​

​Engineering excellence parameters:

• ​Input Voltage: 100–240V AC (50/60Hz) | 125–250V DC (auto-sensing)
• ​Output Regulation: 5.1V DC ±0.5% (6A continuous, 9A peak/1s)
• ​Efficiency: 92% (EN 50564 compliant)
• ​Redundancy Tolerance: ≤0.1% current imbalance during parallel operation
• ​Hold-Up Time: 20ms @ full load during power loss
• ​Inrush Current: <35A (NTC-limited)
• ​Isolation: 2500V AC input-output (EN 50178 OVC III)
• ​MTBF: >560,000 hours @ 40°C (Telcordia SR-332)
• ​Certifications: UL 61010-1, ATEX II 3G Ex ec IIC T80°C Gc, SIL 2 (IEC 61508)

​3.Targeted Applications​

​Zero-downtime power infrastructure:

• ​Oil & Gas Platforms: SIL 2 safety shutdown systems (API 14F Zone 1)
• ​Pharmaceutical: FDA 21 CFR Part 11-compliant cleanroom control cabinets
• ​Energy Grids: Substation RTUs with generator/UPS backup
• ​Automotive Robotics: 24/7 paint shop robots (–40°C cold-start)
• ​Water SCADA: Flood-resistant pump stations (IP66/NEMA 4X)
• ​Semiconductor: Vibration-sensitive wafer handling tools (Class 10 cleanroom)
• ​Mining: Conveyor control in MSHA-compliant hazardous areas

4.​Competitive Advantages​

​Operational superiorities:

• ​True Hot-Swap: Masterless parallel operation eliminates single-point failures
• ​Energy Optimization: 92% efficiency reduces cooling costs by 40% vs. competitors
• ​Cyber Resilience: TPM 2.0 hardware-backed firmware signing (IEC 62443-4-2)
• ​Lifecycle Economy: 15-year service life with ​zero capacitor replacements​
• ​Phase Loss Immunity: Operates at 50% load during single-phase grid faults
• ​Space Efficiency: 30% smaller footprint than legacy 1756-PA72 modules
• ​Diagnostic Depth: Real-time load/voltage tags via Studio 5000® GSV instructions
• ​Global Compliance: Single SKU covers UL/CE/ATEX/KC/RCM standards

5.​Functional Capabilities​

​Advanced power management:

• ​Intelligent Load Balancing: Auto-distributes current (±0.2A tolerance) across parallel units
• ​Brownout Ride-Through: Maintains regulation down to 85V AC for 50ms
• ​Dynamic Prioritization: Stages power to processors before I/O during recovery
• ​Fault Logging: Stores 256 events (overload/thermal/phase-loss) with μs timestamps
• ​Redundancy Coordination: Syncs with 1756-PSCA2 adapters for ≤3ms failover
• ​Thermal Throttling: Reduces output at >85°C ambient
• ​Generator Mode: Handles 0V input dips for 15ms
• ​Secure Updates: Encrypted firmware via ControlFLASH®

​

Packaging & Shipping

Company Information
Xiamen ZhiCheng Automation Technology Co., Ltdit is a leading global supplier of control system components. We specialize in control systems and drives.
more about us , u can view our official web:http://www.zcsensors.com/follow us :

1)https://www.facebook.com/Sensors-and-transmitters-1883785301860678/?ref=aymt_homepage_panel&boosted_auto_open=BOOSTED_PAGELIKE

2)https://www.linkedin.com/in/z-csensorcenter/detail/recent-activity/shares/

With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.which make sure that all this jobs are

perfectly.

we are major in PLC,Sensors,HIM,Transmitters.

Best Supply Brands As Following:1)Bently nevada.2)+GF+.3)Rosemount.4)ABB.5)Allen-Bradley.6)Foxobro.Good working environment, perfect team, sincere cooperation →→ Achieve u and our success !!!